Heat pumps are an excellent HVAC solution for most Ontario homes, but they are not without limitations. Understanding the disadvantages helps homeowners make informed decisions.
Performance in Extreme Cold
Air-source heat pumps lose efficiency as outdoor temperatures drop. In temperatures below -15°C, supplementary heating (backup furnace or electric resistance) may be needed.
Upfront Cost
Heat pump installation costs more than traditional furnace/AC combos. However, energy savings and government rebates can offset the higher initial investment over time.
Maintenance Requirements
Heat pumps require more frequent maintenance than conventional systems. Bi-annual professional service is recommended.